Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter 2 - Graphs and Functions - 2.3 Functions - 2.3 Exercises: 9

Answer

$(-\infty, 3)$

Work Step by Step

The graph is rising from the left up to $x=3$. Thus, the function is increasing in the interval $(-\infty, 3)$. Therefore, the largest open interval where the function increases is $(-\infty, 3)$.
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